August e



(No Model.)

A. E. MULLER.

GHRONOMETER ESOAPEMENT.

N0. 351,122. Patented Oct. 19, 1886.

Wilizegsgefl. 1mm Z01 gym/w AUGUST l l. MULLER, OF PASSAU, GEAMANY.

3HRONOMETER-ESCAPEMENT Application fill-d April 29, l

her fl, he

forming part of Letters Patent No. 351,122, dated October 19, 1836.

6. Serial No. 200,554. (No model.) Patented in England June 6, 1884. No. 8,651; in Germany Decem- No. 29,728, and in Austria-Hungary January 22, 1886, No. 86,358 and No. 68,665.

To aZZ whom it may concern:

Be i t known that I, AUoUsr E. MULLER, a resident of Fassau, Germany, have invented a new and IHIDITOVGC] Chrononieter-Escapement, (for which I have obtained Letters Patent in each. of the following countries: England, No. 8, 651, dated June (3, 1881 Germany, No. 29, 728, dated De ember 9, 188l; Austria-litungary, No. 36,358 and No. 68,665, dated January 22, 1888,) of which the following is a specification.

My invention relates to the construction of a chronoineter-escapement; and it consists of the various elements of improvement hereinafter more fully setforth.

In the accompanying drawings, Figures I and 11 show plans of the several parts in two positions. Fig. lll is an end view of Fig. I, and Fig. IV a diagrammic View showing the action of the teeth of thescape-whcel upon adjoining parts.

The seape-wlniel A is provided with teeth a c a c, 8th., the shape of which will be hereinafter more fully described.

13 is an. arbor, which is provided with a lifting-tooth, a, and with two lingers, 03 0;,botween which a recess, (7, is made.

0 is a lateh-wheel. provided with projections 0 c, forming a fork. The wheel Chas also a tooth, 7:, and. a recess, '11

H is the halanrewheel attached to an arbor, H, which carries a plate or disk, t, provided with a circular recess, 8 s, to allow the ends of the fork c c to pass freely. Below this plate! pallets Z and y are attached to arbor H. The impact from the tooth of the wheel A is received by the pallet 6, while a pin, 5 carried by the pallet 9, during the reciprocating or swinging motion of the balance H, enters the fork c c and oscillates wheel C.

The construction of the teeth of the scapewheel A is more fully shownin Fig. IV. The tops of the teeth are in a line, '11 a, passing through the center of the wheel, while the lower surfaces of the teeth are in the direction of a line, in m, drawn from the extreme point of the teeth to the peripheryof a circle, (1 11, about onc-halfthc diameter ofthe outside oft-he teeth. (See Fig. 1?.)

\Vhen one of the teeth of the wheel A gives the impulse to the pallet Z, a tooth, a, rests upon the mriphery ol' the arborB. (See Fig. IV.) In this position a tooth constructed in the usual manner would scrape similar to a knife upon the circumference of this arbor,

(sec dotted lines, Fig. IV,) while atooth couheight of fall would be from dotted liner to dotted liner, (see Fig. IV which is morethan double. Further, atooth constructed as above described acts always against the exterior edge of the rece s (1, while the present construction of the teeth would act against the surface of the recess some distance inside of the periphery of the arbor. (See Fig. 1V Besides this, the action or impulse of my improved tooth is continuous against the pallet Z (see Fig. IV) during its whole operation, which cannot be obtained by any other construction of teeth.

The operation is as follows: Fig. Ishows the position of all parts after the impulse has been given. The balance H is swung in the direction of the arrow p j). In this position the tooth a of the wheel A is in a tangential position to the circumference of the arbor B, the liftingtooth .2 lies in the recess h of the wheel. G, and the finger 00 is nearly in a tangential position to the periphery of said wheel 0. The fork c 0 must remain in. the position shown on account of these positions of the tooth and linger x, and likewise on account of the plate t acting against one of the projections c'of the fork. \Vhen the balance H moves in the opposite direction, as indicated by the arrow 1 3}, the pin 9 enters the fork cc and turns the rackwheel 0 toward theleft, pushing thereby the tooth 5 out of its recess 71, thereby turning the arbor B so as to bring its recess (1 in position to allow the tooth c to fall. into the same, while the finger x bears now against the periphery of the wheel 0 until, by the continued rotation of said wheel 0, its tooth 7.: comes in contact with said finger a, when the ratch-wheel G will be held stationary. XVhen the oscillating motion of the balanceH brings the pallet g and pin 9, and consequently the ratoh-wheel O, in the position shown in Fig. II, the tooth z is made to fall into the recess h on account of thepress- 5 ure exerted by the tooth a against the-edge of the recess cl in the arbor B. At the same time a tooth of the scape-wheel A fallsupon the pallet l, and imparts the necessary impulse to the same and to the balance H, the piiighav- -ro ing before this moved out of the fork c c, and the several parts will. be again brought into the positions shown in Fig. I.

I claim as my invention. A ehronoineter-escapement consisting of the combination of scape wheel A, with teeth a a,

&c., t-he arbor B, provided with tooth z, fin- AUG. E. MULLER.

\Vitnesses:

G. DEDREUZ, L. ZERBMEIs'rER. 

